html,body{
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
    background-color: #8DB6CD;
}
body a:hover{
	text-decoration:none;
}
body a{
	text-decoration:none;
}
.head{
    border:solid 1px #8DB6CD;
    height: 25%;
    width: 100%; 
    background-image: url(../img/bg.jpg);
    background-repeat: no-repeat;
    background-size:cover;

}
.headnav{
    position: relative;
    top: 8%;
    left: 60%;
    width: 30%;
    height: 25%;
    
}
.naveframe{
    position: relative;
    width: 90%;
    height: 100%;
    /*border:solid 1px #fff;*/
    border-top:0px solid #fff;
    border-left:0px solid #fff;
    border-right: 0px solid #fff;
    /*border-style:none solid;/*不显示上下边*/
    box-sizing:border-box;
    border-radius: 8px;
}
.navlist{
}
.navlist li{
    float: left;
    list-style:none;
    width: 30%;
    height: auto;
}
.navlist li a{
    display: block;
    text-align: center;
    text-decoration: none;
    color: white 
}
.navlist li a:hover{
    text-align: center;
    display: block;
    border:solid 1px crimson;
    border-radius: 8px;
    box-shadow: 2px 2px 10px lightcoral;
    text-decoration: none;
    color: crimson;
    height: auto;
    
}

.headtext{
    clear: both;
    position: relative;
    top: 20%;
    margin-left: 5%;
    width: 90%;
    height: 60%;
    color: white;

}
.headtext1{
    position: relative;
    top:5%;
    margin-left: 5%;
    font-size: 0.8000em;
    color: white;
    text-indent:2em;
    letter-spacing:2px;
    line-height:1em;
}
.headtext1:hover{
    color: crimson;
    text-shadow:5px 5px 2px aliceblue;  
    cursor:default;
}
.headtext2{
    position: relative;
    top:8%;
    margin-left: 15%;
    font-size: 0.8000em;
    color: white;
    text-indent:2em;
    letter-spacing:2px;
    line-height:1.5em;
}
.headtext2:hover{
    color: crimson;
    text-shadow:5px 5px 2px aliceblue;  
    cursor:default;
}
.contents-all{
    margin-top: 1%;
    display:flex;
    justify-content:center; 
    align-items:center; 
    top: 20%;
    height: auto;
    width: 100%;
    
}
.contents{
    display:inline-block;
    width:80%;
    height: auto;
    border:solid 0px #999;
    box-sizing:border-box;
    border-radius: 8px;
    background-color: #fff;
    
}


.frame{
    margin: 0;
    padding: 0;
    width:100%;
    height: 20%;
    border:solid 1px #999;
    border-radius: 8px;
    
}
.frame:hover{
   
}
.title{
    margin: 1px;
    padding: 2px;
}

.detail{
    /*text-indent:2em;/*缩进*/
    line-height:1.5em;/*行高*/
    letter-spacing:1.5px;/*文字间隔*/
    font-size:.800rem;
    word-break: break-word;
}
.dtime{
    font-size:.700rem;
    color: #6a6a6a;
    margin: 1px;
    padding: 2px;
}

.footer{
    position: relative;
    top: 10%;
    height: 10%;
    width:100%;
    font-size: 0.700rem;
   /* background-color: darkcyan;*/
}
.footertext{
    position: relative;
    text-align: center;
    top: 50%;
    left: 5%;
    width: 90%;
    height: 20%;
    
}
#backtop {
	display: none;
	position: fixed;
	height: 20px;
	width: 60px;
	right: 10px;
	bottom: 10px;
	background: #7892c2;
	background-image: -webkit-linear-gradient(top, #7892c2, #476e9e);
	background-image: -moz-linear-gradient(top, #7892c2, #476e9e);
	background-image: -ms-linear-gradient(top, #7892c2, #476e9e);
	background-image: -o-linear-gradient(top, #7892c2, #476e9e);
	background-image: linear-gradient(to bottom, #7892c2, #476e9e);
	-webkit-border-radius: 10;
	-moz-border-radius: 10;
	border-radius: 10px;
	text-shadow: 0px 1px 0px #283966;
	-webkit-box-shadow: 0px 0px 0px 2px #9fb4f2;
	-moz-box-shadow: 0px 0px 0px 2px #9fb4f2;
	box-shadow: 0px 0px 0px 2px #9fb4f2;
	font-family: Arial;
	color: #ffffff;
	font-size: 14px;
	border: solid #4e6096 1px;
	text-decoration: none;
}
#backtop:hover {
    color: #ffffff;
    background: #476e9e;
    text-decoration: none;
    cursor: pointer;
  }
  
@media screen and (max-width: 700px) {
    .headnav{
        position: relative;
        top: 12%;
        left: 10%;
        width: 80%;
        height: 16%;    
        }
}
@media screen and (max-height: 320px) {
    .head{
        height: 30%;
        width: 100%; 
        background-image: url(../img/bg.jpg);
        background-repeat: no-repeat;
        background-size:cover;
    
    }
}